<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
	</body>
	<script type="text/javascript">
		var reg = /\.s/;
		var str = "www\\adsff";
		var str2 ="er*sdffd";
		var str2 ="er.sdffd";
//		console.log(reg.test(str));
		console.log(reg.test(str2));
		
	</script>
</html>
